Android中SeekBar和RatingBar用法实例分析

<SeekBar
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/seekBar"
/>

SeekBar seekBar = (SeekBar)findViewById(R.id.seekBar);
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
  @Override
  public void onStopTrackingTouch(SeekBar seekBar) {
    System.out.println("onStopTrackingTouch");
  }
  @Override
  public void onStartTrackingTouch(SeekBar seekBar) {
    System.out.println("onStartTrackingTouch");
  }
  @Override
  public void onProgressChanged(SeekBar seekBar, int progress,
      boolean fromUser) {
    System.out.println("progress : " + progress);
  }
});

<RatingBar
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/ratingBar"
android:numStars="5"
android:stepSize="1.0"
/>

RatingBar ratingBar = (RatingBar)findViewById(R.id.ratingBar);
ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
  @Override
  public void onRatingChanged(RatingBar ratingBar, float rating,
      boolean fromUser) {
    System.out.println(rating);
  }
});